DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:07:35 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 072/Erath VRSN: W 072-904/Bluff Dale ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 4,674,529 0.9459 4,941,885 8 70 .036378808 2 A 4,691,830 0.9792 4,791,493 9 24 .017208082 3 A 4,682,497 1.1153 4,198,419 8 15 .019912890 4 C 8,464,890 0.8528 9,925,997 10 313 .005229924 5 C 9,169,294 0.7789 11,772,107 10 258 .006800991 6 C 5,235,935 0.9545 5,485,526 11 115 .005642677 7 C 7,483,215 1.3111 5,707,585 9 99 .007917983 8 D3 21,953,050 0.9202 23,856,825 37 800 .036968553 RANDOM TOTALS: 66,355,240 70,679,837 102 1,694 CATG J EXCEPTION VALUES: 2,003,780 3,247,050 CATG D1 EXCEPTION VALUES: 3,647,070 3,281,467 CATG A EXCEPTION VALUES: 2,628,360 2,487,982 TOTAL TEST VALUES (4): 74,634,450 79,696,336 MARGIN OF ERROR PERCENT: 5.0000003 MARGIN OF ERROR VALUE: 3,984,817 CONFIDENCE INTERVAL VALUES (5): LOCAL TEST VALUE: 74,634,450 (OUTSIDE CONFIDENCE INTERVAL) STATE LOWER LIMIT: 75,711,519 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) STATE UPPER LIMIT: 83,681,153 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 89,424,369 (SEE ISD SUMMARY WORKSHEET) SOURCES: (1) SEE STRATIFIED CATEGORY WORKSHEET REPORTS PTS236, PTS430 (2) NUMBER OF PARCELS SAMPLED BY STAFF (3) TOTAL CATEGORY PARCELS FROM STRATIFICATION REPORT APPRAISAL ROLL, OR SELF-REPORT (4) INCLUDES ANY PARCELS IN A, B, C, D3, F1, G1, G2,OR L1 MARKED AS EXCEPTION PROPERTIES (5) UNSTUDIED CATEGORIES AND SUB-CATEGORIES WERE NOT INCLUDED IN THE CONFIDENCE INTERVAL VALUES
